Measure the Impedance of a circuit by frequency sweep. (Known as Electrochemical Impedance Spectroscopy) by using National Instrument Hardware

[Saeed780]

My objective is to Make the  potentiostat/galvanostat - this is the device that applies a voltage or current to the system being studied and measures the resulting current or voltage response. and

Making the impedance analyzer - this device measures the impedance of the system as a function of frequency.

Questions:

I am using  NI PCI-E 6351(PCI Express, 16 AI (16-Bit, 1.25 MS/s), 2 AO (2.86 MS/s), 24 DIO Multifunction I/O Device—The PCIe‑6351 offers analog I/O, digital I/O, and four 32‑bit counters/timers for PWM, encoder, frequency, event counting, etc)  for generating and reading analog signal.

What maximum frequency sine wave signal can be generated with this hardware. How to calculate that?

What maximum frequency sine wave signal can be read with this hardware. How to calculate that?

How to measure the phase shift of two measured signals with this device?

It will be very appreciated If someone can help to achieve the objective by making its complete VI.

I have already made a VI and will share it if required.

[LVIEWPQ]

Always share your VI 

[GerdW]

Hi Saeed,

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@Saeed780 wrote:

What maximum frequency sine wave signal can be generated with this hardware. How to calculate that?

What maximum frequency sine wave signal can be read with this hardware. How to calculate that?

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Apply the Nyquist frequency criterion to the max sample rates for AI and AO to get your answers…

(Keep in mind the AI and AO is muxed and max sample rate is reduced for multiple channels.)

[Saeed780]

Sorry, At that time i was working on it. Please see my VI